The Brandenburg-Berlin Ticket (per day 1st/2nd class €49/29) entitles you and up to four accompanying passengers to one day of unlimited travel within Berlin and Brandenburg on RE (Regional Express), RB (RegionalBahn) and S-Bahn trains as well as buses, the U-Bahn and trams. Tickets are valid from 9am to 3am the following day Monday to Friday and from midnight to 3am the following day on weekends. The Brandenburg-Berlin Ticket Nacht (1st/2nd class €42/22) kicks in any day from 6pm to 6am. Children under 15 years of age travel for free if accompanied by at least one parent or grandparent. For timetable information, see www.vbb.de.